Answer:
Step-by-step explanation:

Keep the first fraction, change division to multiplication and find the reciprocal(multiplicative inverse) of the second fraction

<span>x intercept when f(x) = 0
so
</span><span>x^2-81 = 0
x^2 = 81
x = + 9 and x = -9
Answer
</span><span>C -9</span>
Make a number line and make it into four parts that shows that <span>needs to let his puppy outside every 25 min.</span>
A vertical asymptote is a line that the graph of the function does not cross.
If:

+/- ∞
then the line x = a is a vertical asymptote.
For x = 0:
f ( 0 ) = 3 * cot 0 - 4 = ∞
For x = +/- 2 π :
f ( 2 π ) = 3 * cot π - 4 = - ∞
Answer:
A ) x = 0 and C ) x = +/- 2π
12/49
4*3=12
7*7=49
12/49 miles long is being repaved.
This can be tested by taking a mile (in feet for example) and multiplying 5280 ft by 4/7 then by 3/7 to get the same answer as taking 5280 ft times 12/49.